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SQL Challenges,

SQL Challenge: Tackling the Island Problem in Time Series Data

Jump into our SQL Challenge! Today, we’re exploring customer loyalty trends. Are you prepared to show off your SQL skills? About the quiz In this SQL pop quiz, we’re challenging you to demonstrate your understanding of islands in a time series data set. Whoever submits the correct and most performant query will be featured in …
Uli Bethke November 7, 2023
Flexter,

Deep dive on XML converters, XML conversion tools and XML conversion projects

Are you looking for an XML converter or XML conversion tool for enterprise use cases? Are you looking for advice and tips and tricks for an XML conversion project? If…
charlie October 4, 2023
Snowflake,

7 guardrails against common mistakes that inflate Snowflake credit usage 

Dodge costly pitfalls Snowflake implementation has pioneered dozens of innovations in the data platform space. The long list includes separation of compute and storage, physical workload separation, data sharing, data…
Uli Bethke September 13, 2023
FlowHigh,

Automatically detect bad SQL. Static and dynamic analysis of SQL code

Preventing Query Catastrophe with FlowHigh SQL Analyser Does the following sound familiar? As the wizard EsQuEl delved deep into the SQL code, he stumbled upon multiple instances where tables were…
Uli Bethke September 8, 2023
FlowHigh, FlowHigh,

From Code to Clarity: Visualizing SQL code for Documentation and Debugging

In this post we will show you how you can create a visual diagram of your SQL code. We will use the FlowHigh SQL visualiser to achieve this. FlowHigh is…
Uli Bethke May 29, 2023

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Data Warehousing Books,

Oracle data integration book

The guys at Packt publishing have asked me to review a brand new book on Oracle data integration and consolidation: Oracle Information, Integration, Migration and Consolidation. I have written this…
Uli Bethke September 22, 2011
Oracle Data Integrator (ODI),

ODI performance tuning, and optimisation

I get a lot of questions around ODI performance tuning and performance optimisation. There is a very good note on the Oracle support site that covers this. Note 423726.1 covers…
Uli Bethke August 15, 2011
Oracle Data Integrator (ODI),

What's the best location for the ODI agent?

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and Recipes I am just back from a holiday in County Wexford, Ireland's…
Uli Bethke July 24, 2011
Oracle Data Integrator (ODI),

ODI 11g book announced for July

The Oracle Data Integrator 11g: Getting Started book has been announced for 31 July. For details on what will be covered have a look at the Packt website who will…
Uli Bethke June 14, 2011
Oracle,

Vote for my Oracle Open World Presentation on Oracle Mix

I’ve submitted the following 3 presentations on Oracle Mix, to be included in the voting process. Voting finishes on 19th June. Please vote for my presentations. As they stay about…
Uli Bethke June 3, 2011
analytic functions,

Time series in OBIEE. Analytic functions and range window as an alternative to OBIEE AGO function.

All intellectual credit for this post goes to my colleague Maciek Kocon. I am simply documenting this. We had some performance issues recently using the OBIEE AGO function for time…
Uli Bethke June 1, 2011